qspec.analyze.straight_std  (  x ,  sigma_a ,  sigma_b ,  corr_ab  )[source]

Parameters:

xarray_like

The x values.

sigma_aarray_like

The standard deviation of the y-intercept.

sigma_barray_like

The standard deviation of the slope.

corr_abarray_like

The correlation coefficient between the slope and y-intercept.

Returns:

outndarray

The standard deviation of a straight line where the x values do not have uncertainties.